added jitsi moderation features

jitsimod/__init__.py

jitsimod/admin.py

jitsimod/apps.py

jitsimod/forms.py

jitsimod/migrations/0001_initial.py

jitsimod/migrations/0002_room_reason.py

jitsimod/migrations/__init__.py

jitsimod/modapi.py

jitsimod/models.py

jitsimod/templates/jitsi/forms/room.html

jitsimod/templates/jitsi/newroom.html

jitsimod/templates/jitsi/room.html

jitsimod/templates/jitsi/rooms.html

jitsimod/tests.py

jitsimod/urls.py

jitsimod/views.py

templates/base.html

videoportal/urls.py